Power scrubber



FIG. 1 is a perspective view of a power scrubber showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is an enlarged top view thereof;

FIG. 7 is an enlarged bottom view thereof;

FIG. 8 is a perspective view thereof with the lower part rotated; and,

FIG. 9 is an exploded view thereof.

The dashed broken lines illustrate portions of the power scrubber and form no part of the claimed design. 

CLAIM The ornamental design for a power scrubber, as shown and described. 